Watson-Marlow 620U - Manual (Page 88)

Watson-Marlow 620UN, 620U, 620SN, 620S User Manual 88
Rotor removal
Remove the rotor cover by hand and the central locating bolt using a 5mm
Allen key. Pull the rotor off the keyed shaft. Do not use tools to lever the rear
face of the rotor away from the inner face of the track: it should come off by
hand.
Track removal
Remove the rotor as described above.
Disconnect the waste pipework (if attached).
Loosen the two track retaining screws using a suitable screwdriver.
Withdraw the track fully from the gearbox.
After removing the rotor and track, it is advisable to remove the metal key
from the keyway, clean and reassamble. The key fits its keyway tightly. It may
be freed by tapping gently with a screwdriver or other suitable tool.